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Introducing the flush casement window by Evolution

Windows, redefined.

The Evolution Flush window is a great addition to the Evolution range, featuring traditional aesthetics for properties that are replacing timber flush windows, or for those wanting traditional looks, yet with a clean and fuss free design finish.

What's not to love? 

The Flush window has all the proportions of traditional flush casement timber windows, without all the drawbacks of timber. There’s no sanding or painting with this window, just elegant, stylish and fuss free looks for years to come.

Coupled with Georgian bar or leaded glass, the Evolution Flush windows compliment any style of property, new or old. And with the Evolution wood effect finish as standard, it will always be difficult to distinguish from timber.

If you want modern features, yet either need or want a timber flush window, then our modern alternative could be the solution for you. These virtually maintenance–free windows have been developed based on authentic, traditional design and create a stunning feature point for any home.

Cottage Flush Window

Features and Benefits of Flush Windows

Evolution Flush windows are sure to improve your home in many ways. Outlined below are some of the key features and benefits of the Evolution Flush window.

Feature - Window aesthetics inspired by traditional timber flush casement windows. Deep timber cill and timber styling throughout the frame.
Benefit - The Evolution Flush window is ideal for those wanting to replace original flush casement timber windows, or aspire to achieve the look of timber windows. The Evolution Flush window really does look like timber, and it’s difficult to tell it apart from real timber.

Timber Effect Flush Window

Feature - Exceptional energy performance – A+11. Triple Glazing also available.
Benefit - The heat generated in your home will not be able to escape with the highly energy rated Flush window. Your bills will reduce in cost and your house will stay warm and cosy for years to come. You can even have triple glazing to reduce noise and conserve heat.

Feature - Slimmest window available with a greater glazed area.
Benefit - Let more light into your home with the Evolution Flush window, without compromise.

Grey Flush Window Close Up

Feature - Exquisite wood detailing across all of the frame
Benefit - With the Evolution Flush window, you can achieve the look of wood, but without the laborious sanding and painting every 5 years. The Evolution wood-grain effect laminate ensures a seamless finish and a maintenance free window.

Feature - Discreet trickle ventilation via our unique weather bar.
Benefit - Trickle vents can be an unsightly, but sometimes necessary addition to replacement windows. Evolution have developed a weather bar that sits over the trickle vents on the outside, keeping them hidden from view, so your beautiful new windows will look their very best whilst still being practical.

Timber Effect Flush uPVC Window

Feature - Available in a range of standard colours and in over 200 RAL colours.
Benefit - Having a wide colour range to choose from, you can have the exact finish you desire. You can even colour match your new Evolution Flush windows to an existing colour – suitable for conservation areas.

Coloured Flush Window

Some of the key features of the Evolution Flush are as follows:

  • Excellent energy efficiency - WER A+11
  • 1.3 U value as standard
  • Available with a 45mm deep, authentic cill
  • 28mm Double glazing
  • Available with traditional Georgian bar, leaded glass or clear glass
  • Discreet trickle ventillation available
  • Egress (easy clean) hinges as standard with heavy duty options also available
  • Working and decorative peg stay available
  • All standard Evolution colours available including the new gloss White and Agate Grey finishes
Olive Grey Flush Window

Your next steps

Request a brochure

If you can’t visit your local Evolution showroom but still want to find out more about our beautiful handcrafted windows and doors then simply order a brochure today and be inspired.


Request a quotation

Speak to one of our friendly, experienced designers to discuss your requirements and individual project needs. We will provide you with advice and a detailed, no-obligation quotation.

Get a quote

Visit a showroom

To truly explore Evolution, why not visit your local showroom where you can see the Evolution difference for yourself. We are also always happy to welcome visitors to our Bedfordshire head office.

Visit today

Installer Locator Find your nearest showroom

The UK's finest timber alternative windows and doors.